Kaori lives as an ordinary high school student in Japan until her life irrevocably transforms upon encountering Ai-Q, a potent psychic entity. Ai-Q becomes her constant companion, awakening Kaori's dormant telepathy. This new ability grants her access to the thoughts of others and reveals hidden psychic phenomena.

Initially overwhelmed and distressed by the relentless sensory onslaught of surrounding thoughts and emotions, Kaori grapples with the intrusive nature of her power. Her inherent kindness and deep empathy make her acutely sensitive to the pain and suffering she senses, compelling her to use her powers to help people despite her initial fear and hesitation.

Kaori forges a deep connection with Ai-Q, depending on the entity for crucial guidance and support as she navigates her complex psychic reality. She also builds friendships with others who discover her abilities and join her in psychic investigations and confrontations. Her path brings her into conflict with antagonists like Professor Koto, who aims to harness psychic powers for destructive ends.

Through her experiences, Kaori gradually masters her telepathy, growing into her abilities and gaining confidence. She evolves from a hesitant individual weighed down by her gift into someone who actively chooses to wield it for the good of others. Her journey involves facing perilous psychic threats, resolving conflicts rooted in misunderstanding or concealed emotions, and protecting her friends and the innocent.

Kaori's development centers on managing the ethical and emotional complexities of her telepathy while solidifying her determination to be a positive force. Her story explores responsibility, compassion, and discovering inner strength through connection.